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plurals

POUnresolved External Symbol when using dllexport and specific function name
primarykey
Id
14322807
data
AcceptedAnswerId
14322974
AnswerCount
2
ClosedDate
CommentCount
4
CommunityOwnedDate
CreationDate
2013-01-14T16:46:53.797
FavoriteCount
0
LastActivityDate
2013-01-14T17:21:01.843
LastEditDate
2013-01-14T17:01:39.227
LastEditorUserId
332635
OwnerUserId
332635
ParentId
0
PostTypeId
1
Score
2
ViewCount
1262
LastEditorDisplayName
text
Body
EDIT To get around the problem, I added the following to the (beginning of the) header file: <pre><code>#ifdef GetMessage #undef GetMessage static inline BOOL GetMessage( LPMSG lpMsg, HWND hWnd, UINT wMsgFilterMin, UINT wMsgFilterMax ) { #if UNICODE return ::GetMessageW(lpMsg, hWnd, wMsgFilterMin, wMsgFilterMax); #else return ::GetMessageA(lpMsg, hWnd, wMsgFilterMin, wMsgFilterMax); #endif } #endif </code></pre> <hr> I'm creating a C++ DLL (using Visual Studio 2008) from code like the following: Header File: <pre><code>#include <windows.h> // Edit: This is the culprit. class __declspec(dllexport) TestBaseClass { protected: char m_Message[512]; public: TestBaseClass(); virtual char* GetMessage(void) = 0; }; class __declspec(dllexport) TestDerivedClass : public TestBaseClass { public: TestDerivedClass(); virtual char* GetMessage(void); }; </code></pre> CPP File: <pre><code>TestBaseClass::TestBaseClass() { } TestDerivedClass::TestDerivedClass() : TestBaseClass() { } char* TestDerivedClass::GetMessage(void) { sprintf(m_Message, "This is a Message"); return m_Message; } </code></pre> When I go to compile the DLL, I get a linker error: <blockquote> error LNK2001: unresolved external symbol "public: virtual char * __thiscall TestDerivedClass::GetMessageA(void)" (?GetMessageA@TestDerivedClass@@UAEPADXZ) </blockquote> If I change every instance of "GetMessage" to something else (e.g. "TestFunc"), I do not get the linker error. Primary Question: Why can't I use "GetMessage" as my function name? Secondary Question: Is there a way to resolve the linker error, and keep "GetMessage" in my class, as currently defined?
Tags
<c++><dll><dllexport>
Title
Unresolved External Symbol when using dllexport and specific function name
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USTreDubZedd
UserOwnerUserId
1. USTreDubZedd
plurals
PostLinksPostIdRelatedPostId
1. PL
 singulars
 LinkTypeLinkTypeId
 LTLinked
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POUnresolved External Symbol when using dllexport and specific function name
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId

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